ML456262131
Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescens
作者
Andrew Birch 该用户提供的媒体文件 档案
日期
地点
MacArthur Park
Los Angeles, California, United States
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媒体文件注释
Long call of both WEGU and Olympic - starts with Western and ends with Olympic
观察细节
continuing 2nd cycle - I can see from my pics that it has begun its 2nd cycle inner primary molt. Large pale gull, with hefty dark bill. Primaries quite worn but still quite brown and generally very dirty gray overall for a pure GWGU. Long call recorded which is more consistent with Glaucous-winged (eg each note double length of Western). Both long call records start with Western and end with Olympic which makes a good comparison.
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